1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.lwawt;
27
28 import java.awt.*;
29 import java.awt.event.*;
30 import java.awt.peer.*;
31 import java.util.List;
32
33 import javax.swing.*;
34
35 import sun.awt.*;
36 import sun.java2d.*;
37 import sun.java2d.loops.Blit;
38 import sun.java2d.loops.CompositeType;
39 import sun.java2d.pipe.Region;
40 import sun.util.logging.PlatformLogger;
41
42 public class LWWindowPeer
43 extends LWContainerPeer<Window, JComponent>
44 implements FramePeer, DialogPeer, FullScreenCapable, DisplayChangedListener, PlatformEventNotifier
45 {
46 public enum PeerType {
47 SIMPLEWINDOW,
48 FRAME,
49 DIALOG,
50 EMBEDDED_FRAME,
51 VIEW_EMBEDDED_FRAME,
52 LW_FRAME
53 }
54
55 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.lwawt.focus.LWWindowPeer");
56
57 private final PlatformWindow platformWindow;
58
59 // Window bounds reported by the native system (as opposed to
60 // regular bounds inherited from LWComponentPeer which are
61 // requested by user and may haven't been applied yet because
62 // of asynchronous requests to the windowing system)
63 private int sysX;
64 private int sysY;
65 private int sysW;
66 private int sysH;
67
68 private static final int MINIMUM_WIDTH = 1;
69 private static final int MINIMUM_HEIGHT = 1;
70
71 private Insets insets = new Insets(0, 0, 0, 0);
72
73 private GraphicsDevice graphicsDevice;
74 private GraphicsConfiguration graphicsConfig;
75
76 private SurfaceData surfaceData;
77 private final Object surfaceDataLock = new Object();
78
79 private volatile int windowState = Frame.NORMAL;
80
81 // check that the mouse is over the window
82 private volatile boolean isMouseOver = false;
83
84 // A peer where the last mouse event came to. Used by cursor manager to
85 // find the component under cursor
86 private static volatile LWComponentPeer<?, ?> lastCommonMouseEventPeer;
87
88 // A peer where the last mouse event came to. Used to generate
89 // MOUSE_ENTERED/EXITED notifications
90 private volatile LWComponentPeer<?, ?> lastMouseEventPeer;
91
92 // Peers where all dragged/released events should come to,
93 // depending on what mouse button is being dragged according to Cocoa
94 private static final LWComponentPeer<?, ?>[] mouseDownTarget = new LWComponentPeer<?, ?>[3];
95
96 // A bitmask that indicates what mouse buttons produce MOUSE_CLICKED events
97 // on MOUSE_RELEASE. Click events are only generated if there were no drag
98 // events between MOUSE_PRESSED and MOUSE_RELEASED for particular button
99 private static int mouseClickButtons = 0;
100
101 private volatile boolean isOpaque = true;
102
103 private static final Font DEFAULT_FONT = new Font("Lucida Grande", Font.PLAIN, 13);
104
105 private static LWWindowPeer grabbingWindow;
106
107 private volatile boolean skipNextFocusChange;
108
109 private static final Color nonOpaqueBackground = new Color(0, 0, 0, 0);
110
111 private volatile boolean textured;
112
113 private final PeerType peerType;
114
115 private final SecurityWarningWindow warningWindow;
116
117 /**
118 * Current modal blocker or null.
119 *
120 * Synchronization: peerTreeLock.
121 */
122 private LWWindowPeer blocker;
123
124 public LWWindowPeer(Window target, PlatformComponent platformComponent,
125 PlatformWindow platformWindow, PeerType peerType)
126 {
127 super(target, platformComponent);
128 this.platformWindow = platformWindow;
129 this.peerType = peerType;
130
131 Window owner = target.getOwner();
132 LWWindowPeer ownerPeer = owner == null ? null :
133 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(owner);
134 PlatformWindow ownerDelegate = (ownerPeer != null) ? ownerPeer.getPlatformWindow() : null;
135
136 // The delegate.initialize() needs a non-null GC on X11.
137 GraphicsConfiguration gc = getTarget().getGraphicsConfiguration();
138 synchronized (getStateLock()) {
139 // graphicsConfig should be updated according to the real window
140 // bounds when the window is shown, see 4868278
141 this.graphicsConfig = gc;
142 }
143
144 if (!target.isFontSet()) {
145 target.setFont(DEFAULT_FONT);
146 }
147
148 if (!target.isBackgroundSet()) {
149 target.setBackground(SystemColor.window);
150 } else {
151 // first we check if user provided alpha for background. This is
152 // similar to what Apple's Java do.
153 // Since JDK7 we should rely on setOpacity() only.
154 // this.opacity = c.getAlpha();
155 }
156
157 if (!target.isForegroundSet()) {
158 target.setForeground(SystemColor.windowText);
159 // we should not call setForeground because it will call a repaint
160 // which the peer may not be ready to do yet.
161 }
162
163 platformWindow.initialize(target, this, ownerDelegate);
164
165 // Init warning window(for applets)
166 SecurityWarningWindow warn = null;
167 if (target.getWarningString() != null) {
168 // accessSystemTray permission allows to display TrayIcon, TrayIcon tooltip
169 // and TrayIcon balloon windows without a warning window.
170 if (!AWTAccessor.getWindowAccessor().isTrayIconWindow(target)) {
171 LWToolkit toolkit = (LWToolkit)Toolkit.getDefaultToolkit();
172 warn = toolkit.createSecurityWarning(target, this);
173 }
174 }
175
176 warningWindow = warn;
177 }
178
179 @Override
180 void initializeImpl() {
181 super.initializeImpl();
182
183
184 if (getTarget() instanceof Frame) {
185 setTitle(((Frame) getTarget()).getTitle());
186 setState(((Frame) getTarget()).getExtendedState());
187 } else if (getTarget() instanceof Dialog) {
188 setTitle(((Dialog) getTarget()).getTitle());
189 }
190
191 updateAlwaysOnTopState();
192 updateMinimumSize();
193
194 final Shape shape = getTarget().getShape();
195 if (shape != null) {
196 applyShape(Region.getInstance(shape, null));
197 }
198
199 final float opacity = getTarget().getOpacity();
200 if (opacity < 1.0f) {
201 setOpacity(opacity);
202 }
203
204 setOpaque(getTarget().isOpaque());
205
206 updateInsets(platformWindow.getInsets());
207 if (getSurfaceData() == null) {
208 replaceSurfaceData(false);
209 }
210 activateDisplayListener();
211 }
212
213 // Just a helper method
214 @Override
215 public PlatformWindow getPlatformWindow() {
216 return platformWindow;
217 }
218
219 @Override
220 protected LWWindowPeer getWindowPeerOrSelf() {
221 return this;
222 }
223
224 // ---- PEER METHODS ---- //
225
226 @Override
227 protected void disposeImpl() {
228 deactivateDisplayListener();
229 SurfaceData oldData = getSurfaceData();
230 synchronized (surfaceDataLock){
231 surfaceData = null;
232 }
233 if (oldData != null) {
234 oldData.invalidate();
235 }
236 if (isGrabbing()) {
237 ungrab();
238 }
239 if (warningWindow != null) {
240 warningWindow.dispose();
241 }
242
243 platformWindow.dispose();
244 super.disposeImpl();
245 }
246
247 @Override
248 protected void setVisibleImpl(final boolean visible) {
249 if (!visible && warningWindow != null) {
250 warningWindow.setVisible(false, false);
251 }
252
253 super.setVisibleImpl(visible);
254 // TODO: update graphicsConfig, see 4868278
255 platformWindow.setVisible(visible);
256 if (isSimpleWindow()) {
257 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
258
259 if (visible) {
260 if (!getTarget().isAutoRequestFocus()) {
261 return;
262 } else {
263 requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
264 }
265 // Focus the owner in case this window is focused.
266 } else if (kfmPeer.getCurrentFocusedWindow() == getTarget()) {
267 // Transfer focus to the owner.
268 LWWindowPeer owner = getOwnerFrameDialog(LWWindowPeer.this);
269 if (owner != null) {
270 owner.requestWindowFocus(CausedFocusEvent.Cause.ACTIVATION);
271 }
272 }
273 }
274 }
275
276 @Override
277 public final GraphicsConfiguration getGraphicsConfiguration() {
278 synchronized (getStateLock()) {
279 return graphicsConfig;
280 }
281 }
282
283 @Override
284 public boolean updateGraphicsData(GraphicsConfiguration gc) {
285 setGraphicsConfig(gc);
286 return false;
287 }
288
289 protected final Graphics getOnscreenGraphics(Color fg, Color bg, Font f) {
290 if (getSurfaceData() == null) {
291 return null;
292 }
293 if (fg == null) {
294 fg = SystemColor.windowText;
295 }
296 if (bg == null) {
297 bg = SystemColor.window;
298 }
299 if (f == null) {
300 f = DEFAULT_FONT;
301 }
302 return platformWindow.transformGraphics(new SunGraphics2D(getSurfaceData(), fg, bg, f));
303 }
304
305 @Override
306 public void setBounds(int x, int y, int w, int h, int op) {
307
308 if((op & NO_EMBEDDED_CHECK) == 0 && getPeerType() == PeerType.VIEW_EMBEDDED_FRAME) {
309 return;
310 }
311
312 if ((op & SET_CLIENT_SIZE) != 0) {
313 // SET_CLIENT_SIZE is only applicable to window peers, so handle it here
314 // instead of pulling 'insets' field up to LWComponentPeer
315 // no need to add insets since Window's notion of width and height includes insets.
316 op &= ~SET_CLIENT_SIZE;
317 op |= SET_SIZE;
318 }
319
320 // Don't post ComponentMoved/Resized and Paint events
321 // until we've got a notification from the delegate
322 Rectangle cb = constrainBounds(x, y, w, h);
323 setBounds(cb.x, cb.y, cb.width, cb.height, op, false, false);
324 // Get updated bounds, so we don't have to handle 'op' here manually
325 Rectangle r = getBounds();
326 platformWindow.setBounds(r.x, r.y, r.width, r.height);
327 }
328
329 public Rectangle constrainBounds(Rectangle bounds) {
330 return constrainBounds(bounds.x, bounds.y, bounds.width, bounds.height);
331 }
332
333 public Rectangle constrainBounds(int x, int y, int w, int h) {
334
335 if (w < MINIMUM_WIDTH) {
336 w = MINIMUM_WIDTH;
337 }
338
339 if (h < MINIMUM_HEIGHT) {
340 h = MINIMUM_HEIGHT;
341 }
342
343 final int maxW = getLWGC().getMaxTextureWidth();
344 final int maxH = getLWGC().getMaxTextureHeight();
345
346 if (w > maxW) {
347 w = maxW;
348 }
349 if (h > maxH) {
350 h = maxH;
351 }
352
353 return new Rectangle(x, y, w, h);
354 }
355
356 @Override
357 public Point getLocationOnScreen() {
358 return platformWindow.getLocationOnScreen();
359 }
360
361 /**
362 * Overridden from LWContainerPeer to return the correct insets.
363 * Insets are queried from the delegate and are kept up to date by
364 * requiering when needed (i.e. when the window geometry is changed).
365 */
366 @Override
367 public Insets getInsets() {
368 synchronized (getStateLock()) {
369 return insets;
370 }
371 }
372
373 @Override
374 public FontMetrics getFontMetrics(Font f) {
375 // TODO: check for "use platform metrics" settings
376 return platformWindow.getFontMetrics(f);
377 }
378
379 @Override
380 public void toFront() {
381 platformWindow.toFront();
382 }
383
384 @Override
385 public void toBack() {
386 platformWindow.toBack();
387 }
388
389 @Override
390 public void setZOrder(ComponentPeer above) {
391 throw new RuntimeException("not implemented");
392 }
393
394 @Override
395 public void updateAlwaysOnTopState() {
396 platformWindow.setAlwaysOnTop(getTarget().isAlwaysOnTop());
397 }
398
399 @Override
400 public void updateFocusableWindowState() {
401 platformWindow.updateFocusableWindowState();
402 }
403
404 @Override
405 public void setModalBlocked(Dialog blocker, boolean blocked) {
406 synchronized (getPeerTreeLock()) {
407 this.blocker = !blocked ? null :
408 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(blocker);
409 }
410
411 platformWindow.setModalBlocked(blocked);
412 }
413
414 @Override
415 public void updateMinimumSize() {
416 final Dimension min;
417 if (getTarget().isMinimumSizeSet()) {
418 min = getTarget().getMinimumSize();
419 min.width = Math.max(min.width, MINIMUM_WIDTH);
420 min.height = Math.max(min.height, MINIMUM_HEIGHT);
421 } else {
422 min = new Dimension(MINIMUM_WIDTH, MINIMUM_HEIGHT);
423 }
424
425 final Dimension max;
426 if (getTarget().isMaximumSizeSet()) {
427 max = getTarget().getMaximumSize();
428 max.width = Math.min(max.width, getLWGC().getMaxTextureWidth());
429 max.height = Math.min(max.height, getLWGC().getMaxTextureHeight());
430 } else {
431 max = new Dimension(getLWGC().getMaxTextureWidth(),
432 getLWGC().getMaxTextureHeight());
433 }
434
435 platformWindow.setSizeConstraints(min.width, min.height, max.width, max.height);
436 }
437
438 @Override
439 public void updateIconImages() {
440 getPlatformWindow().updateIconImages();
441 }
442
443 @Override
444 public void setOpacity(float opacity) {
445 getPlatformWindow().setOpacity(opacity);
446 repaintPeer();
447 }
448
449 @Override
450 public final void setOpaque(final boolean isOpaque) {
451 if (this.isOpaque != isOpaque) {
452 this.isOpaque = isOpaque;
453 updateOpaque();
454 }
455 }
456
457 private void updateOpaque() {
458 getPlatformWindow().setOpaque(!isTranslucent());
459 replaceSurfaceData(false);
460 repaintPeer();
461 }
462
463 @Override
464 public void updateWindow() {
465 }
466
467 public final boolean isTextured() {
468 return textured;
469 }
470
471 public final void setTextured(final boolean isTextured) {
472 textured = isTextured;
473 }
474
475 @Override
476 public final boolean isTranslucent() {
477 synchronized (getStateLock()) {
478 /*
479 * Textured window is a special case of translucent window.
480 * The difference is only in nswindow background. So when we set
481 * texture property our peer became fully translucent. It doesn't
482 * fill background, create non opaque backbuffers and layer etc.
483 */
484 return !isOpaque || isShaped() || isTextured();
485 }
486 }
487
488 @Override
489 final void applyShapeImpl(final Region shape) {
490 super.applyShapeImpl(shape);
491 updateOpaque();
492 }
493
494 @Override
495 public void repositionSecurityWarning() {
496 if (warningWindow != null) {
497 AWTAccessor.ComponentAccessor compAccessor = AWTAccessor.getComponentAccessor();
498 Window target = getTarget();
499 int x = compAccessor.getX(target);
500 int y = compAccessor.getY(target);
501 int width = compAccessor.getWidth(target);
502 int height = compAccessor.getHeight(target);
503 warningWindow.reposition(x, y, width, height);
504 }
505 }
506
507 // ---- FRAME PEER METHODS ---- //
508
509 @Override // FramePeer and DialogPeer
510 public void setTitle(String title) {
511 platformWindow.setTitle(title == null ? "" : title);
512 }
513
514 @Override
515 public void setMenuBar(MenuBar mb) {
516 platformWindow.setMenuBar(mb);
517 }
518
519 @Override // FramePeer and DialogPeer
520 public void setResizable(boolean resizable) {
521 platformWindow.setResizable(resizable);
522 }
523
524 @Override
525 public void setState(int state) {
526 platformWindow.setWindowState(state);
527 }
528
529 @Override
530 public int getState() {
531 return windowState;
532 }
533
534 @Override
535 public void setMaximizedBounds(Rectangle bounds) {
536 // TODO: not implemented
537 }
538
539 @Override
540 public void setBoundsPrivate(int x, int y, int width, int height) {
541 setBounds(x, y, width, height, SET_BOUNDS | NO_EMBEDDED_CHECK);
542 }
543
544 @Override
545 public Rectangle getBoundsPrivate() {
546 throw new RuntimeException("not implemented");
547 }
548
549 // ---- DIALOG PEER METHODS ---- //
550
551 @Override
552 public void blockWindows(List<Window> windows) {
553 //TODO: LWX will probably need some collectJavaToplevels to speed this up
554 for (Window w : windows) {
555 WindowPeer wp =
556 (WindowPeer) AWTAccessor.getComponentAccessor().getPeer(w);
557 if (wp != null) {
558 wp.setModalBlocked((Dialog)getTarget(), true);
559 }
560 }
561 }
562
563 // ---- PEER NOTIFICATIONS ---- //
564
565 @Override
566 public void notifyIconify(boolean iconify) {
567 //The toplevel target is Frame and states are applicable to it.
568 //Otherwise, the target is Window and it don't have state property.
569 //Hopefully, no such events are posted in the queue so consider the
570 //target as Frame in all cases.
571
572 // REMIND: should we send it anyway if the state not changed since last
573 // time?
574 WindowEvent iconifyEvent = new WindowEvent(getTarget(),
575 iconify ? WindowEvent.WINDOW_ICONIFIED
576 : WindowEvent.WINDOW_DEICONIFIED);
577 postEvent(iconifyEvent);
578
579 int newWindowState = iconify ? Frame.ICONIFIED : Frame.NORMAL;
580 postWindowStateChangedEvent(newWindowState);
581
582 // REMIND: RepaintManager doesn't repaint iconified windows and
583 // hence ignores any repaint request during deiconification.
584 // So, we need to repaint window explicitly when it becomes normal.
585 if (!iconify) {
586 repaintPeer();
587 }
588 }
589
590 @Override
591 public void notifyZoom(boolean isZoomed) {
592 int newWindowState = isZoomed ? Frame.MAXIMIZED_BOTH : Frame.NORMAL;
593 postWindowStateChangedEvent(newWindowState);
594 }
595
596 /**
597 * Called by the {@code PlatformWindow} when any part of the window should
598 * be repainted.
599 */
600 @Override
601 public void notifyExpose(final Rectangle r) {
602 repaintPeer(r);
603 }
604
605 /**
606 * Called by the {@code PlatformWindow} when this window is moved/resized by
607 * user or window insets are changed. There's no notifyReshape() in
608 * LWComponentPeer as the only components which could be resized by user are
609 * top-level windows.
610 */
611 @Override
612 public void notifyReshape(int x, int y, int w, int h) {
613 final boolean moved;
614 final boolean resized;
615 final boolean invalid = updateInsets(platformWindow.getInsets());
616 synchronized (getStateLock()) {
617 moved = (x != sysX) || (y != sysY);
618 resized = (w != sysW) || (h != sysH);
619 sysX = x;
620 sysY = y;
621 sysW = w;
622 sysH = h;
623 }
624
625 // Check if anything changed
626 if (!moved && !resized && !invalid) {
627 return;
628 }
629 // First, update peer's bounds
630 setBounds(x, y, w, h, SET_BOUNDS, false, false);
631
632 // Second, update the graphics config and surface data
633 final boolean isNewDevice = updateGraphicsDevice();
634 if (resized || isNewDevice) {
635 replaceSurfaceData();
636 }
637
638 // Third, COMPONENT_MOVED/COMPONENT_RESIZED/PAINT events
639 if (moved || invalid) {
640 handleMove(x, y, true);
641 }
642 if (resized || invalid || isNewDevice) {
643 handleResize(w, h, true);
644 repaintPeer();
645 }
646
647 repositionSecurityWarning();
648 }
649
650 private void clearBackground(final int w, final int h) {
651 final Graphics g = getOnscreenGraphics(getForeground(), getBackground(),
652 getFont());
653 if (g != null) {
654 try {
655 if (g instanceof Graphics2D) {
656 ((Graphics2D) g).setComposite(AlphaComposite.Src);
657 }
658 if (isTranslucent()) {
659 g.setColor(nonOpaqueBackground);
660 g.fillRect(0, 0, w, h);
661 }
662 if (!isTextured()) {
663 if (g instanceof SunGraphics2D) {
664 ((SunGraphics2D) g).constrain(0, 0, w, h, getRegion());
665 }
666 g.setColor(getBackground());
667 g.fillRect(0, 0, w, h);
668 }
669 } finally {
670 g.dispose();
671 }
672 }
673 }
674
675 @Override
676 public void notifyUpdateCursor() {
677 getLWToolkit().getCursorManager().updateCursorLater(this);
678 }
679
680 @Override
681 public void notifyActivation(boolean activation, LWWindowPeer opposite) {
682 Window oppositeWindow = (opposite == null)? null : opposite.getTarget();
683 changeFocusedWindow(activation, oppositeWindow);
684 }
685
686 // MouseDown in non-client area
687 @Override
688 public void notifyNCMouseDown() {
689 // Ungrab except for a click on a Dialog with the grabbing owner
690 if (grabbingWindow != null &&
691 grabbingWindow != getOwnerFrameDialog(this))
692 {
693 grabbingWindow.ungrab();
694 }
695 }
696
697 // ---- EVENTS ---- //
698
699 /*
700 * Called by the delegate to dispatch the event to Java. Event
701 * coordinates are relative to non-client window are, i.e. the top-left
702 * point of the client area is (insets.top, insets.left).
703 */
704 @Override
705 public void notifyMouseEvent(int id, long when, int button,
706 int x, int y, int screenX, int screenY,
707 int modifiers, int clickCount, boolean popupTrigger,
708 byte[] bdata)
709 {
710 // TODO: fill "bdata" member of AWTEvent
711 Rectangle r = getBounds();
712 // findPeerAt() expects parent coordinates
713 LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
714
715 if (id == MouseEvent.MOUSE_EXITED) {
716 isMouseOver = false;
717 if (lastMouseEventPeer != null) {
718 if (lastMouseEventPeer.isEnabled()) {
719 Point lp = lastMouseEventPeer.windowToLocal(x, y,
720 this);
721 Component target = lastMouseEventPeer.getTarget();
722 postMouseExitedEvent(target, when, modifiers, lp,
723 screenX, screenY, clickCount, popupTrigger, button);
724 }
725
726 // Sometimes we may get MOUSE_EXITED after lastCommonMouseEventPeer is switched
727 // to a peer from another window. So we must first check if this peer is
728 // the same as lastWindowPeer
729 if (lastCommonMouseEventPeer != null && lastCommonMouseEventPeer.getWindowPeerOrSelf() == this) {
730 lastCommonMouseEventPeer = null;
731 }
732 lastMouseEventPeer = null;
733 }
734 } else if(id == MouseEvent.MOUSE_ENTERED) {
735 isMouseOver = true;
736 if (targetPeer != null) {
737 if (targetPeer.isEnabled()) {
738 Point lp = targetPeer.windowToLocal(x, y, this);
739 Component target = targetPeer.getTarget();
740 postMouseEnteredEvent(target, when, modifiers, lp,
741 screenX, screenY, clickCount, popupTrigger, button);
742 }
743 lastCommonMouseEventPeer = targetPeer;
744 lastMouseEventPeer = targetPeer;
745 }
746 } else {
747 PlatformWindow topmostPlatforWindow =
748 platformWindow.getTopmostPlatformWindowUnderMouse();
749
750 LWWindowPeer topmostWindowPeer =
751 topmostPlatforWindow != null ? topmostPlatforWindow.getPeer() : null;
752
753 // topmostWindowPeer == null condition is added for the backward
754 // compatibility with applets. It can be removed when the
755 // getTopmostPlatformWindowUnderMouse() method will be properly
756 // implemented in CPlatformEmbeddedFrame class
757 if (topmostWindowPeer == this || topmostWindowPeer == null) {
758 generateMouseEnterExitEventsForComponents(when, button, x, y,
759 screenX, screenY, modifiers, clickCount, popupTrigger,
760 targetPeer);
761 } else {
762 LWComponentPeer<?, ?> topmostTargetPeer =
763 topmostWindowPeer != null ? topmostWindowPeer.findPeerAt(r.x + x, r.y + y) : null;
764 topmostWindowPeer.generateMouseEnterExitEventsForComponents(when, button, x, y,
765 screenX, screenY, modifiers, clickCount, popupTrigger,
766 topmostTargetPeer);
767 }
768
769 // TODO: fill "bdata" member of AWTEvent
770
771 int eventButtonMask = (button > 0)? MouseEvent.getMaskForButton(button) : 0;
772 int otherButtonsPressed = modifiers & ~eventButtonMask;
773
774 // For pressed/dragged/released events OS X treats other
775 // mouse buttons as if they were BUTTON2, so we do the same
776 int targetIdx = (button > 3) ? MouseEvent.BUTTON2 - 1 : button - 1;
777
778 // MOUSE_ENTERED/EXITED are generated for the components strictly under
779 // mouse even when dragging. That's why we first update lastMouseEventPeer
780 // based on initial targetPeer value and only then recalculate targetPeer
781 // for MOUSE_DRAGGED/RELEASED events
782 if (id == MouseEvent.MOUSE_PRESSED) {
783
784 // Ungrab only if this window is not an owned window of the grabbing one.
785 if (!isGrabbing() && grabbingWindow != null &&
786 grabbingWindow != getOwnerFrameDialog(this))
787 {
788 grabbingWindow.ungrab();
789 }
790 if (otherButtonsPressed == 0) {
791 mouseClickButtons = eventButtonMask;
792 } else {
793 mouseClickButtons |= eventButtonMask;
794 }
795
796 // The window should be focused on mouse click. If it gets activated by the native platform,
797 // this request will be no op. It will take effect when:
798 // 1. A simple not focused window is clicked.
799 // 2. An active but not focused owner frame/dialog is clicked.
800 // The mouse event then will trigger a focus request "in window" to the component, so the window
801 // should gain focus before.
802 requestWindowFocus(CausedFocusEvent.Cause.MOUSE_EVENT);
803
804 mouseDownTarget[targetIdx] = targetPeer;
805 } else if (id == MouseEvent.MOUSE_DRAGGED) {
806 // Cocoa dragged event has the information about which mouse
807 // button is being dragged. Use it to determine the peer that
808 // should receive the dragged event.
809 targetPeer = mouseDownTarget[targetIdx];
810 mouseClickButtons &= ~modifiers;
811 } else if (id == MouseEvent.MOUSE_RELEASED) {
812 // TODO: currently, mouse released event goes to the same component
813 // that received corresponding mouse pressed event. For most cases,
814 // it's OK, however, we need to make sure that our behavior is consistent
815 // with 1.6 for cases where component in question have been
816 // hidden/removed in between of mouse pressed/released events.
817 targetPeer = mouseDownTarget[targetIdx];
818
819 if ((modifiers & eventButtonMask) == 0) {
820 mouseDownTarget[targetIdx] = null;
821 }
822
823 // mouseClickButtons is updated below, after MOUSE_CLICK is sent
824 }
825
826 if (targetPeer == null) {
827 //TODO This can happen if this window is invisible. this is correct behavior in this case?
828 targetPeer = this;
829 }
830
831
832 Point lp = targetPeer.windowToLocal(x, y, this);
833 if (targetPeer.isEnabled()) {
834 MouseEvent event = new MouseEvent(targetPeer.getTarget(), id,
835 when, modifiers, lp.x, lp.y,
836 screenX, screenY, clickCount,
837 popupTrigger, button);
838 postEvent(event);
839 }
840
841 if (id == MouseEvent.MOUSE_RELEASED) {
842 if ((mouseClickButtons & eventButtonMask) != 0
843 && targetPeer.isEnabled()) {
844 postEvent(new MouseEvent(targetPeer.getTarget(),
845 MouseEvent.MOUSE_CLICKED,
846 when, modifiers,
847 lp.x, lp.y, screenX, screenY,
848 clickCount, popupTrigger, button));
849 }
850 mouseClickButtons &= ~eventButtonMask;
851 }
852 }
853 notifyUpdateCursor();
854 }
855
856 private void generateMouseEnterExitEventsForComponents(long when,
857 int button, int x, int y, int screenX, int screenY,
858 int modifiers, int clickCount, boolean popupTrigger,
859 final LWComponentPeer<?, ?> targetPeer) {
860
861 if (!isMouseOver || targetPeer == lastMouseEventPeer) {
862 return;
863 }
864
865 // Generate Mouse Exit for components
866 if (lastMouseEventPeer != null && lastMouseEventPeer.isEnabled()) {
867 Point oldp = lastMouseEventPeer.windowToLocal(x, y, this);
868 Component target = lastMouseEventPeer.getTarget();
869 postMouseExitedEvent(target, when, modifiers, oldp, screenX, screenY,
870 clickCount, popupTrigger, button);
871 }
872 lastCommonMouseEventPeer = targetPeer;
873 lastMouseEventPeer = targetPeer;
874
875 // Generate Mouse Enter for components
876 if (targetPeer != null && targetPeer.isEnabled()) {
877 Point newp = targetPeer.windowToLocal(x, y, this);
878 Component target = targetPeer.getTarget();
879 postMouseEnteredEvent(target, when, modifiers, newp, screenX, screenY, clickCount, popupTrigger, button);
880 }
881 }
882
883 private void postMouseEnteredEvent(Component target, long when, int modifiers,
884 Point loc, int xAbs, int yAbs,
885 int clickCount, boolean popupTrigger, int button) {
886
887 updateSecurityWarningVisibility();
888
889 postEvent(new MouseEvent(target,
890 MouseEvent.MOUSE_ENTERED,
891 when, modifiers,
892 loc.x, loc.y, xAbs, yAbs,
893 clickCount, popupTrigger, button));
894 }
895
896 private void postMouseExitedEvent(Component target, long when, int modifiers,
897 Point loc, int xAbs, int yAbs,
898 int clickCount, boolean popupTrigger, int button) {
899
900 updateSecurityWarningVisibility();
901
902 postEvent(new MouseEvent(target,
903 MouseEvent.MOUSE_EXITED,
904 when, modifiers,
905 loc.x, loc.y, xAbs, yAbs,
906 clickCount, popupTrigger, button));
907 }
908
909 @Override
910 public void notifyMouseWheelEvent(long when, int x, int y, int modifiers,
911 int scrollType, int scrollAmount,
912 int wheelRotation, double preciseWheelRotation,
913 byte[] bdata)
914 {
915 // TODO: could we just use the last mouse event target here?
916 Rectangle r = getBounds();
917 // findPeerAt() expects parent coordinates
918 final LWComponentPeer<?, ?> targetPeer = findPeerAt(r.x + x, r.y + y);
919 if (targetPeer == null || !targetPeer.isEnabled()) {
920 return;
921 }
922
923 Point lp = targetPeer.windowToLocal(x, y, this);
924 // TODO: fill "bdata" member of AWTEvent
925 // TODO: screenX/screenY
926 postEvent(new MouseWheelEvent(targetPeer.getTarget(),
927 MouseEvent.MOUSE_WHEEL,
928 when, modifiers,
929 lp.x, lp.y,
930 0, 0, /* screenX, Y */
931 0 /* clickCount */, false /* popupTrigger */,
932 scrollType, scrollAmount,
933 wheelRotation, preciseWheelRotation));
934 }
935
936 /*
937 * Called by the delegate when a key is pressed.
938 */
939 @Override
940 public void notifyKeyEvent(int id, long when, int modifiers,
941 int keyCode, char keyChar, int keyLocation)
942 {
943 LWKeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
944 Component focusOwner = kfmPeer.getCurrentFocusOwner();
945
946 if (focusOwner == null) {
947 focusOwner = kfmPeer.getCurrentFocusedWindow();
948 if (focusOwner == null) {
949 focusOwner = this.getTarget();
950 }
951 }
952
953 KeyEvent keyEvent = new KeyEvent(focusOwner, id, when, modifiers,
954 keyCode, keyChar, keyLocation);
955 AWTAccessor.getKeyEventAccessor().setExtendedKeyCode(keyEvent,
956 ExtendedKeyCodes.getExtendedKeyCodeForChar(keyChar));
957 postEvent(keyEvent);
958 }
959
960 // ---- UTILITY METHODS ---- //
961
962 private void activateDisplayListener() {
963 final GraphicsEnvironment ge =
964 GraphicsEnvironment.getLocalGraphicsEnvironment();
965 ((SunGraphicsEnvironment) ge).addDisplayChangedListener(this);
966 }
967
968 private void deactivateDisplayListener() {
969 final GraphicsEnvironment ge =
970 GraphicsEnvironment.getLocalGraphicsEnvironment();
971 ((SunGraphicsEnvironment) ge).removeDisplayChangedListener(this);
972 }
973
974 private void postWindowStateChangedEvent(int newWindowState) {
975 if (getTarget() instanceof Frame) {
976 AWTAccessor.getFrameAccessor().setExtendedState(
977 (Frame)getTarget(), newWindowState);
978 }
979
980 WindowEvent stateChangedEvent = new WindowEvent(getTarget(),
981 WindowEvent.WINDOW_STATE_CHANGED,
982 windowState, newWindowState);
983 postEvent(stateChangedEvent);
984 windowState = newWindowState;
985
986 updateSecurityWarningVisibility();
987 }
988
989 private static int getGraphicsConfigScreen(GraphicsConfiguration gc) {
990 // TODO: this method can be implemented in a more
991 // efficient way by forwarding to the delegate
992 GraphicsDevice gd = gc.getDevice();
993 GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
994 GraphicsDevice[] gds = ge.getScreenDevices();
995 for (int i = 0; i < gds.length; i++) {
996 if (gds[i] == gd) {
997 return i;
998 }
999 }
1000 // Should never happen if gc is a screen device config
1001 return 0;
1002 }
1003
1004 /*
1005 * This method is called when window's graphics config is changed from
1006 * the app code (e.g. when the window is made non-opaque) or when
1007 * the window is moved to another screen by user.
1008 *
1009 * Returns true if the graphics config has been changed, false otherwise.
1010 */
1011 private boolean setGraphicsConfig(GraphicsConfiguration gc) {
1012 synchronized (getStateLock()) {
1013 if (graphicsConfig == gc) {
1014 return false;
1015 }
1016 // If window's graphics config is changed from the app code, the
1017 // config correspond to the same device as before; when the window
1018 // is moved by user, graphicsDevice is updated in notifyReshape().
1019 // In either case, there's nothing to do with screenOn here
1020 graphicsConfig = gc;
1021 }
1022 // SurfaceData is replaced later in updateGraphicsData()
1023 return true;
1024 }
1025
1026 /**
1027 * Returns true if the GraphicsDevice has been changed, false otherwise.
1028 */
1029 public boolean updateGraphicsDevice() {
1030 GraphicsDevice newGraphicsDevice = platformWindow.getGraphicsDevice();
1031 synchronized (getStateLock()) {
1032 if (graphicsDevice == newGraphicsDevice) {
1033 return false;
1034 }
1035 graphicsDevice = newGraphicsDevice;
1036 }
1037
1038 final GraphicsConfiguration newGC = newGraphicsDevice.getDefaultConfiguration();
1039
1040 if (!setGraphicsConfig(newGC)) return false;
1041
1042 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
1043 public void run() {
1044 AWTAccessor.getComponentAccessor().setGraphicsConfiguration(getTarget(), newGC);
1045 }
1046 });
1047 return true;
1048 }
1049
1050 @Override
1051 public final void displayChanged() {
1052 updateGraphicsDevice();
1053 // Replace surface unconditionally, because internal state of the
1054 // GraphicsDevice could be changed.
1055 replaceSurfaceData();
1056 repaintPeer();
1057 }
1058
1059 @Override
1060 public final void paletteChanged() {
1061 // components do not need to react to this event.
1062 }
1063
1064 /*
1065 * May be called by delegate to provide SD to Java2D code.
1066 */
1067 public SurfaceData getSurfaceData() {
1068 synchronized (surfaceDataLock) {
1069 return surfaceData;
1070 }
1071 }
1072
1073 private void replaceSurfaceData() {
1074 replaceSurfaceData(true);
1075 }
1076
1077 private void replaceSurfaceData(final boolean blit) {
1078 synchronized (surfaceDataLock) {
1079 final SurfaceData oldData = getSurfaceData();
1080 surfaceData = platformWindow.replaceSurfaceData();
1081 final Rectangle size = getSize();
1082 if (getSurfaceData() != null && oldData != getSurfaceData()) {
1083 clearBackground(size.width, size.height);
1084 }
1085
1086 if (blit) {
1087 blitSurfaceData(oldData, getSurfaceData());
1088 }
1089
1090 if (oldData != null && oldData != getSurfaceData()) {
1091 // TODO: drop oldData for D3D/WGL pipelines
1092 // This can only happen when this peer is being created
1093 oldData.flush();
1094 }
1095 }
1096 flushOnscreenGraphics();
1097 }
1098
1099 private void blitSurfaceData(final SurfaceData src, final SurfaceData dst) {
1100 //TODO blit. proof-of-concept
1101 if (src != dst && src != null && dst != null
1102 && !(dst instanceof NullSurfaceData)
1103 && !(src instanceof NullSurfaceData)
1104 && src.getSurfaceType().equals(dst.getSurfaceType())
1105 && src.getDefaultScale() == dst.getDefaultScale()) {
1106 final Rectangle size = src.getBounds();
1107 final Blit blit = Blit.locate(src.getSurfaceType(),
1108 CompositeType.Src,
1109 dst.getSurfaceType());
1110 if (blit != null) {
1111 blit.Blit(src, dst, AlphaComposite.Src, null, 0, 0, 0, 0,
1112 size.width, size.height);
1113 }
1114 }
1115 }
1116
1117 /**
1118 * Request the window insets from the delegate and compares it with the
1119 * current one. This method is mostly called by the delegate, e.g. when the
1120 * window state is changed and insets should be recalculated.
1121 * <p/>
1122 * This method may be called on the toolkit thread.
1123 */
1124 public final boolean updateInsets(final Insets newInsets) {
1125 synchronized (getStateLock()) {
1126 if (insets.equals(newInsets)) {
1127 return false;
1128 }
1129 insets = newInsets;
1130 }
1131 return true;
1132 }
1133
1134 public static LWWindowPeer getWindowUnderCursor() {
1135 return lastCommonMouseEventPeer != null ? lastCommonMouseEventPeer.getWindowPeerOrSelf() : null;
1136 }
1137
1138 public static LWComponentPeer<?, ?> getPeerUnderCursor() {
1139 return lastCommonMouseEventPeer;
1140 }
1141
1142 /*
1143 * Requests platform to set native focus on a frame/dialog.
1144 * In case of a simple window, triggers appropriate java focus change.
1145 */
1146 public boolean requestWindowFocus(CausedFocusEvent.Cause cause) {
1147 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1148 focusLog.fine("requesting native focus to " + this);
1149 }
1150
1151 if (!focusAllowedFor()) {
1152 focusLog.fine("focus is not allowed");
1153 return false;
1154 }
1155
1156 if (platformWindow.rejectFocusRequest(cause)) {
1157 return false;
1158 }
1159
1160 Window currentActive = KeyboardFocusManager.
1161 getCurrentKeyboardFocusManager().getActiveWindow();
1162
1163 Window opposite = LWKeyboardFocusManagerPeer.getInstance().
1164 getCurrentFocusedWindow();
1165
1166 // Make the owner active window.
1167 if (isSimpleWindow()) {
1168 LWWindowPeer owner = getOwnerFrameDialog(this);
1169
1170 // If owner is not natively active, request native
1171 // activation on it w/o sending events up to java.
1172 if (owner != null && !owner.platformWindow.isActive()) {
1173 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1174 focusLog.fine("requesting native focus to the owner " + owner);
1175 }
1176 LWWindowPeer currentActivePeer = currentActive == null ? null :
1177 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(
1178 currentActive);
1179
1180 // Ensure the opposite is natively active and suppress sending events.
1181 if (currentActivePeer != null && currentActivePeer.platformWindow.isActive()) {
1182 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1183 focusLog.fine("the opposite is " + currentActivePeer);
1184 }
1185 currentActivePeer.skipNextFocusChange = true;
1186 }
1187 owner.skipNextFocusChange = true;
1188
1189 owner.platformWindow.requestWindowFocus();
1190 }
1191
1192 // DKFM will synthesize all the focus/activation events correctly.
1193 changeFocusedWindow(true, opposite);
1194 return true;
1195
1196 // In case the toplevel is active but not focused, change focus directly,
1197 // as requesting native focus on it will not have effect.
1198 } else if (getTarget() == currentActive && !getTarget().hasFocus()) {
1199
1200 changeFocusedWindow(true, opposite);
1201 return true;
1202 }
1203
1204 return platformWindow.requestWindowFocus();
1205 }
1206
1207 protected boolean focusAllowedFor() {
1208 Window window = getTarget();
1209 // TODO: check if modal blocked
1210 return window.isVisible() && window.isEnabled() && isFocusableWindow();
1211 }
1212
1213 private boolean isFocusableWindow() {
1214 boolean focusable = getTarget().isFocusableWindow();
1215 if (isSimpleWindow()) {
1216 LWWindowPeer ownerPeer = getOwnerFrameDialog(this);
1217 if (ownerPeer == null) {
1218 return false;
1219 }
1220 return focusable && ownerPeer.getTarget().isFocusableWindow();
1221 }
1222 return focusable;
1223 }
1224
1225 public boolean isSimpleWindow() {
1226 Window window = getTarget();
1227 return !(window instanceof Dialog || window instanceof Frame);
1228 }
1229
1230 @Override
1231 public void emulateActivation(boolean activate) {
1232 changeFocusedWindow(activate, null);
1233 }
1234
1235 /*
1236 * Changes focused window on java level.
1237 */
1238 protected void changeFocusedWindow(boolean becomesFocused, Window opposite) {
1239 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1240 focusLog.fine((becomesFocused?"gaining":"loosing") + " focus window: " + this);
1241 }
1242 if (skipNextFocusChange) {
1243 focusLog.fine("skipping focus change");
1244 skipNextFocusChange = false;
1245 return;
1246 }
1247 if (!isFocusableWindow() && becomesFocused) {
1248 focusLog.fine("the window is not focusable");
1249 return;
1250 }
1251 if (becomesFocused) {
1252 synchronized (getPeerTreeLock()) {
1253 if (blocker != null) {
1254 if (focusLog.isLoggable(PlatformLogger.Level.FINEST)) {
1255 focusLog.finest("the window is blocked by " + blocker);
1256 }
1257 return;
1258 }
1259 }
1260 }
1261
1262 // Note, the method is not called:
1263 // - when the opposite (gaining focus) window is an owned/owner window.
1264 // - for a simple window in any case.
1265 if (!becomesFocused &&
1266 (isGrabbing() || getOwnerFrameDialog(grabbingWindow) == this))
1267 {
1268 if (focusLog.isLoggable(PlatformLogger.Level.FINE)) {
1269 focusLog.fine("ungrabbing on " + grabbingWindow);
1270 }
1271 // ungrab a simple window if its owner looses activation.
1272 grabbingWindow.ungrab();
1273 }
1274
1275 KeyboardFocusManagerPeer kfmPeer = LWKeyboardFocusManagerPeer.getInstance();
1276 kfmPeer.setCurrentFocusedWindow(becomesFocused ? getTarget() : null);
1277
1278 int eventID = becomesFocused ? WindowEvent.WINDOW_GAINED_FOCUS : WindowEvent.WINDOW_LOST_FOCUS;
1279 WindowEvent windowEvent = new TimedWindowEvent(getTarget(), eventID, opposite, System.currentTimeMillis());
1280
1281 // TODO: wrap in SequencedEvent
1282 postEvent(windowEvent);
1283 }
1284
1285 static LWWindowPeer getOwnerFrameDialog(LWWindowPeer peer) {
1286 Window owner = (peer != null ? peer.getTarget().getOwner() : null);
1287 while (owner != null && !(owner instanceof Frame || owner instanceof Dialog)) {
1288 owner = owner.getOwner();
1289 }
1290 return owner == null ? null :
1291 (LWWindowPeer) AWTAccessor.getComponentAccessor().getPeer(owner);
1292 }
1293
1294 /**
1295 * Returns the foremost modal blocker of this window, or null.
1296 */
1297 public LWWindowPeer getBlocker() {
1298 synchronized (getPeerTreeLock()) {
1299 LWWindowPeer blocker = this.blocker;
1300 if (blocker == null) {
1301 return null;
1302 }
1303 while (blocker.blocker != null) {
1304 blocker = blocker.blocker;
1305 }
1306 return blocker;
1307 }
1308 }
1309
1310 @Override
1311 public void enterFullScreenMode() {
1312 platformWindow.enterFullScreenMode();
1313 updateSecurityWarningVisibility();
1314 }
1315
1316 @Override
1317 public void exitFullScreenMode() {
1318 platformWindow.exitFullScreenMode();
1319 updateSecurityWarningVisibility();
1320 }
1321
1322 public long getLayerPtr() {
1323 return getPlatformWindow().getLayerPtr();
1324 }
1325
1326 void grab() {
1327 if (grabbingWindow != null && !isGrabbing()) {
1328 grabbingWindow.ungrab();
1329 }
1330 grabbingWindow = this;
1331 }
1332
1333 final void ungrab(boolean doPost) {
1334 if (isGrabbing()) {
1335 grabbingWindow = null;
1336 if (doPost) {
1337 postEvent(new UngrabEvent(getTarget()));
1338 }
1339 }
1340 }
1341
1342 void ungrab() {
1343 ungrab(true);
1344 }
1345
1346 private boolean isGrabbing() {
1347 return this == grabbingWindow;
1348 }
1349
1350 public PeerType getPeerType() {
1351 return peerType;
1352 }
1353
1354 public void updateSecurityWarningVisibility() {
1355 if (warningWindow == null) {
1356 return;
1357 }
1358
1359 if (!isVisible()) {
1360 return; // The warning window should already be hidden.
1361 }
1362
1363 boolean show = false;
1364
1365 if (!platformWindow.isFullScreenMode()) {
1366 if (isVisible()) {
1367 if (LWKeyboardFocusManagerPeer.getInstance().getCurrentFocusedWindow() ==
1368 getTarget()) {
1369 show = true;
1370 }
1371
1372 if (platformWindow.isUnderMouse() || warningWindow.isUnderMouse()) {
1373 show = true;
1374 }
1375 }
1376 }
1377
1378 warningWindow.setVisible(show, true);
1379 }
1380
1381 @Override
1382 public String toString() {
1383 return super.toString() + " [target is " + getTarget() + "]";
1384 }
1385 }